8.9×3.6-5.02简算

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8.9×3.6-5.02简算8.9×3.6-5.02简算8.9×3.6-5.02简算(9-0.1)×(4-0.4)-5-0.02=36-3.6-0.4+0.04-5-0.02=(36-3-5)-(0.

8.9×3.6-5.02简算
8.9×3.6-5.02简算

8.9×3.6-5.02简算
(9-0.1)×(4-0.4)-5-0.02
=36-3.6-0.4+0.04-5-0.02
=(36-3-5)-(0.6+0.4)+(0.04-0.02)
=28-1+0.02
=27.02

怎样简便就怎样算。 145+78+255 105×32 656-164-36 48+12-48+3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9